A truss type net cage and a lifting mechanism thereof

Abstract

The present application belongs to the technical field of net cage, and particularly discloses a truss type net cage and a lifting mechanism thereof, which comprises a net cage body, and a switching mechanism arranged on the net cage body and used for adjusting the net cage to lift up and down. The switching mechanism comprises two mounting blocks arranged on the net cage body and a cavity arranged between the two mounting blocks, and a standby rack is arranged in the cavity and used for placing and protecting the standby rack. The standby rack is switched with the transmission rack by the driving mechanism, so that the transmission rack is prevented from being directly caused to tilt due to abrasion, and the water layer adjustment is prevented from being interrupted and the fish school is prevented from being caused to have a stress reaction, thereby improving the breeding survival rate, guaranteeing the continuity of breeding production, and making the transmission rack and the standby rack share the load by regularly switching the transmission rack and the standby rack, so that the single transmission rack and the standby rack are prevented from being excessively worn, and the service life of the transmission rack and the standby rack is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of net cages, and particularly relates to a truss type net cage and a lifting mechanism thereof. BACKGROUND

[0002] The truss type net cage is a deep-sea aquaculture facility with a light-weight steel structure truss as a supporting frame. The truss structure constructed by high-strength steel provides stable support, and is equipped with a lifting system, netting and auxiliary equipment, so that efficient aquaculture can be carried out under complex sea conditions. Its core features are: light and stable structure, capable of resisting 16-17 level typhoons; lifting function, capable of adjusting the aquaculture water layer according to requirements; large aquaculture capacity, with a single net cage water body of tens of thousands of cubic meters.

[0003] In the prior art, a driving motor and a gear structure are provided on the side of the net cage. The motor drives the gear to rotate, and the gear drives the entire net cage frame to stably ascend and descend along the pile leg through the meshing transmission of the gear and the rack of the pile leg. However, in the process of use, the rack on the net cage is prone to sudden breakage or jamming due to wind and wave impact, biological attachment wear, corrosion fatigue, etc., which directly causes the net cage to tilt. Therefore, the lifting system needs to be disassembled and the operation needs to be stopped, resulting in interruption of water layer adjustment and stress reaction of fish groups, which is not convenient for improving the survival rate of aquaculture.

[0004] Therefore, it is necessary to invent a truss type net cage and a lifting mechanism thereof to solve the above problems. SUMMARY

[0005] In view of the above problems, the present application provides a truss type net cage and a lifting mechanism thereof to solve the problems raised in the background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme:

[0007] A truss type net cage and a lifting mechanism thereof, comprising a net cage body, a switching mechanism is arranged on the net cage body for adjusting the net cage body to ascend and descend, and the switching mechanism comprises:

[0008] Two mounting blocks are arranged on the net cage body, a cavity is arranged between the two mounting blocks, a standby rack is arranged in the cavity for placing and protecting the standby rack, and the standby racks are symmetrically arranged in the cavity for switching to keep the net cage body stable during ascending and descending;

[0009] A first fixing block is arranged on the top of the two mounting blocks, a driving structure is arranged in the first fixing block, the driving structure is connected with the standby rack, and the driving structure is used for driving the standby rack to move.

[0010] Further, the net cage body comprises a mounting platform, a pipe pile, a truss, a moving seat and a gear and rack transmission structure, a plurality of pipe piles are fixedly connected to the mounting platform, moving seats are arranged at the upper and lower ends of the plurality of pipe piles, the pipe piles and the moving seats are connected through the truss, two mounting blocks are sleeved outside the pipe piles, a gear and rack transmission structure is arranged outside the mounting block on the outside, and the gear and rack transmission structure is used to drive the moving seat and the truss to move.

[0011] Further, a first connecting block is fixedly connected to the moving seat at the top end of the pipe pile, and is used to mount the gear and rack transmission structure; the moving seat is movably connected to the outside of the pipe pile; the bottom of the mounting block on the outside is fixedly connected to the bottom end of the pipe pile; the bottom of the mounting block on the inside is rotatably connected to the bottom end of the pipe pile; an installation opening is formed in the side of the mounting block on the outside, close to the gear and rack structure; and the installation opening and the standby rack are cross-shaped.

[0012] Further, the gear and rack transmission structure comprises a second driving member and a transmission rack, the second driving member is arranged on the first connecting block, the second driving member is provided with the transmission rack on one side, the transmission rack is located at the installation opening, the transmission rack is connected to the bottom of the first gear through a moving plate on the top, the second driving member and the transmission rack are symmetrically arranged on the two sides of the mounting block on the outside, and are used to stably lift the moving seat and the truss.

[0013] Further, the driving structure comprises a first driving member and a first gear, the first driving member is located in the first fixed block, and the first driving member is located on one side of the pipe pile; the first driving member is provided with the first gear on one side; the first gear is located between the top end of the mounting block on the outside and the top end of the pipe pile; the first gear is rotatably connected to the outside of the top end of the pipe pile in the middle part; the moving plate is movably connected to the bottom of the first gear; and the moving plate is fixedly connected to the standby rack on the bottom.

[0014] Further, an electric push rod is fixedly connected to the inner wall of the cavity, the electric push rod is fixedly connected to the transmission rack and the standby rack, the electric push rod is located at the upper and lower ends of the transmission rack and the standby rack, the first fixed block is located at the top of the transmission rack, and a buffer block is arranged between the top of the transmission rack and the first fixed block and between the bottom of the transmission rack and the bottom end of the pipe pile, and the buffer block is located on one side of the moving plate.

[0015] Further, a fixing mechanism is arranged in the middle part of the transmission rack and the standby rack, the fixing mechanism comprises a first motor, a rotating shaft, a movable plate, a pushing member and a second fixed block, the first motor is located inside the transmission rack or the standby rack, the first motor is fixedly connected with the rotating shaft at the output end, the movable plate is threadedly connected to the rotating shaft, the movable plate is movably connected to the inner wall of the transmission rack or the standby rack, the pushing member is hinged to the two ends of the movable plate, and the second fixed block is hinged to the pushing member.

[0016] Further, the second connecting block is arranged on both sides of the top end of the transmission rack, the second fixed block is inserted with the second connecting block, the second connecting block is fixedly connected to the bottom of the first fixed block, the bottom end of the rotating shaft is rotatably connected with the inner wall of the bottom of the transmission rack or the standby rack, and the pusher is slidably connected with the inner wall of the transmission rack or the standby rack.

[0017] Further, the bottom end of the transmission rack or the standby rack is internally provided with a limiting structure, the limiting structure comprises a moving piece, a sliding block and a plug rod, the moving piece is arranged at the bottom end of the transmission rack or the standby rack, the sliding block is arranged on the moving piece and used for driving the sliding block to move along the inner wall of the bottom end of the transmission rack or the standby rack, and the plug rod is fixedly connected to the bottom of the sliding block and inserted into the bottom of the pipe pile.

[0018] Further, the bottom end of the rotating shaft is connected with the moving piece through the mounting plate, the plug rods are symmetrically arranged on both sides of the sliding block, and the plug rods are arranged on both sides of the buffer block at the bottom of the transmission rack, so as to limit the position of the transmission rack.

[0019] The technical effects and advantages of the present application are as follows:

[0020] 1. The standby rack and the transmission rack are switched by the driving mechanism, so that the transmission rack is prevented from being directly caused to tilt the net cage due to abrasion, the water layer adjustment is prevented from being interrupted, the fish school is prevented from being stressed, the survival rate of breeding is improved, the continuity of breeding production is ensured, the transmission rack and the standby rack share the load by periodically switching the transmission rack and the standby rack, the single transmission rack and the standby rack are prevented from being excessively worn, and the service life of the transmission rack and the standby rack is improved.

[0021] 2. The position of the transmission rack or the standby rack is limited by the fixing mechanism and the limiting structure, the standby rack is prevented from being disengaged and sliding out, the transmission rack and the standby rack are kept stable during use, the net cage body is kept stable during lifting, and the switching precision is ensured. DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0023] Figure 2 is a structural diagram of the pipe pile, the gear and rack transmission structure and the mounting block of the embodiment of the present application;

[0024] Figure 3 is a structural diagram of the gear and rack transmission structure and the driving mechanism of the embodiment of the present application;

[0025] Figure 4 is a sectional view of the mounting block and the pipe pile of the embodiment of the present application;

[0026] Figure 5is the structural diagram of the pipe pile and the mounting block of the embodiment of the present application;

[0027] Figure 6 is the internal structure diagram of the cavity of the embodiment of the present application;

[0028] Figure 7 is the sectional view of the pipe pile and the transmission rack of the embodiment of the present application;

[0029] Figure 8 is the enlarged view of A of the present application Figure 7 ;

[0030] Figure 9 is the enlarged view of B of the present application Figure 7 ;

[0031] Figure 10 is the structural diagram of the fixing mechanism and the limiting structure of the embodiment of the present application.

[0032] In the figure: 1, net cage body; 2, mounting block; 3, spare rack; 4, first fixing block; 5, pipe pile; 6, truss; 7, moving seat; 8, first connecting block; 9, first gear; 10, moving plate; 11, transmission rack; 12, second motor; 13, transmission wheel; 14, third motor; 15, second gear; 16, electric push rod; 17, buffer block; 18, first motor; 19, rotating shaft; 20, movable plate; 21, push plate; 22, second fixing block; 23, second connecting block; 24, moving piece; 25, sliding block; 26, insertion rod. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiment of the present application more clear, the technical scheme of the present application will be described clearly and completely in combination with the embodiments.

[0034] The present application provides a truss type net cage and its lifting mechanism, like Figures 1 to 6As shown, it comprises a net cage body 1, a switching mechanism is arranged on the net cage body 1, which is used to adjust the net cage body 1 to lift, the switching mechanism comprises a mounting block 2, a standby rack 3, a first fixed block 4 and a driving structure, two mounting blocks 2 are arranged on the net cage body 1, two mounting blocks 2 are directly provided with cavities, the standby rack 3 is arranged in the cavity, which is used to place and protect the standby rack 3, the standby rack 3 is symmetrically arranged in the cavity, which provides an installation reference for the gear and rack transmission structure and the switching mechanism, the first fixed block 4 is arranged at the top of the mounting block 2, the driving structure is arranged in the first fixed block 4, the driving structure is connected with the standby rack 3, which is used to drive the standby rack 3 to move, the net cage body 1 is hexagonally arranged, the net cage body 1 comprises a mounting platform, a pipe pile 5, a truss 6, a moving seat 7 and a gear and rack transmission structure, a plurality of pipe piles 5 are fixedly connected to the mounting platform, which provides a guide reference for lifting, the moving seat 7 is arranged at the upper and lower ends of the plurality of pipe piles 5, the truss 6 is fixedly connected with the moving seat 7 at both ends, the mounting block 2 is sleeved outside the pipe pile 5, the gear and rack transmission structure is arranged outside the mounting block 2 outside, which is used to drive the moving seat 7 and the truss 6 to move.

[0035] The gear and rack transmission structure comprises a second driving member and a transmission rack 11, the second driving member comprises a second motor 12, a transmission shaft, a transmission wheel 13 and a displacement sensor, the output end of the second motor 12 is fixedly connected with the transmission shaft, the transmission shaft is fixedly connected with the transmission wheel 13, the second motor 12 is fixedly connected to the first connecting block 8 through the mounting seat, the displacement sensor is fixed at the end of the rotating shaft of the transmission wheel 13, which is coaxial with the transmission shaft, and is used to measure the rotating displacement of the transmission wheel 13, the second driving member is provided with the transmission rack 11 on one side, the transmission wheel 13 is engaged with the transmission rack 11, the transmission rack 11 is located at the mounting port, the moving plate 10 is fixedly connected to the top of the transmission rack 11, the moving plate 10 is connected with the bottom of the first gear 9, the second motor 12, the transmission shaft, the transmission wheel 13, the displacement sensor and the transmission rack 11 are symmetrically arranged on both sides of the mounting block 2 outside, which is used to stably lift the moving seat 7 and the truss 6.

[0036] The moving seat 7 at the top end of the pipe pile 5 is fixedly connected with the first connecting block 8, which is used to install the gear and rack transmission structure, the moving seat 7 is movably connected with the outside of the pipe pile 5, the bottom of the mounting block 2 outside is fixedly connected with the bottom end of the pipe pile 5, the top of the mounting block 2 inside is fixedly connected with the bottom of the first gear 9, the bottom of the mounting block 2 inside is fixedly connected with the bottom end of the pipe pile 5, and the bottom of the mounting block 2 inside is rotatably connected with the bottom of the pipe pile, the mounting block 2 outside is provided with a mounting port on one side close to the gear and rack structure, and the mounting port and the standby rack 3 are cross-shaped.

[0037] The net cage body 1 is composed of a hexagonal frame structure through the pipe pile 5, the moving seat 7 and the truss 6, the first connecting block 8 is convenient for installing the gear and rack transmission structure, the mounting seat is convenient for improving the stability of the installation of the second motor 12, the transmission shaft and the transmission wheel 13, improving the stability of the meshing with the transmission wheel 13, the standby rack 3 is retracted in the cavity in the initial state and does not participate in transmission, and the cavity is prevented from corrosion, biological adhesion and mechanical collision, the transmission wheel 13 of the second driving part is meshed with the transmission rack 11, when the second motors 12 symmetrically arranged on both sides of the mounting block 2 on the outer side are started and run synchronously, the balance of power on both sides is ensured, and the net cage is prevented from tilting due to unbalanced power on one side, when the transmission shaft is driven to rotate by the output end of the second motor 12, the transmission wheel 13 fixed coaxially is synchronously rotated, the displacement sensor collects the rotation angle signal of the transmission wheel 13 in real time, the rotation displacement of the transmission wheel 13 is directly measured, the rotation angle is compared with the theoretical value, whether the transmission rack 11 is stuck, damaged or has a crack at the tooth root is judged, and the collected rotation displacement data is transmitted to the controller in real time, the controller converts the actual lifting height of the net cage according to the number of teeth of the transmission wheel 13 and the modulus of the transmission rack 11, and compares it with the preset target height, the lifting speed and position of the net cage are monitored in real time, when the transmission wheel 13 moves, the mounting seat, the first connecting block 8 and the moving seat 7 slide along the pipe pile 5, since the moving seat 7 is rigidly connected with the truss 6, the truss 6 and the net cage body 1 are synchronously lifted.

[0038] When it is detected that the transmission rack 11 needs to be replaced due to wear, the displacement sensor triggers a quick switch through abnormal monitoring, the driving structure in the first fixed block 4 is started, the transmission rack 11 is moved into the cavity by the electric push rod 16, the first gear 9 is rotated under the action of the driving structure, the standby rack 3 symmetrically arranged in the cavity is replaced with the transmission rack 11, and is pushed under the action of the electric push rod 16, the standby rack 3 moves to the installation port and is meshed with the transmission wheel 13 on both sides, since the standby rack 3 is symmetrically arranged, symmetric support is formed after meshing, the stress center of the net cage body 1 is unchanged, after the standby rack 3 is meshed in place, the gear and rack transmission mechanism can continue to be used to lift the net cage body 1.

[0039] As Figures 2 to 4As shown, the driving structure includes a first driving member and a first gear 9, the first driving member is located on one side of the pipe pile 5, and the first driving member is provided with the first gear 9 on one side, the driving member includes a third motor 14, a rotating rod and a second gear 15, the third motor 14 is fixedly connected in the first fixed block 4, the output end of the third motor 14 is fixedly connected with the rotating rod, the rotating rod is fixedly connected with the second gear 15, the second gear 15 is engaged with the first gear 9, the first gear 9 is located between the top of the two mounting blocks 2 and the pipe pile 5, the middle part of the first gear 9 is rotatably connected with the top outside of the pipe pile 5, and the bottom of the first gear 9 is movably connected with the moving plate 10, and the bottom of the moving plate 10 is fixedly connected with the standby rack 3.

[0040] The driving member can be protected by the first fixed block 4, so that the driving member is not damaged to affect the switching of the standby rack 3 and the transmission rack 11, and the moving plate 10 can be connected with the first gear 9. When the third motor 14 drives the rotating rod and the second gear 15 to rotate, the first gear 9 can drive the moving plate 10, the mounting block 2 located on the inner side and the standby rack 3 to rotate inside the cavity, so that the standby rack 3 and the transmission wheel 13 are switched. The symmetrical arrangement enables the standby rack 3 to continue to engage with the transmission wheel 13, maintains the stable lifting of the net cage body 1, and guarantees the continuity of the breeding production.

[0041] As shown in the drawings, Figures 4 to 6 The upper and lower ends of the mounting block 2 located on the inner side are both provided with mounting grooves, and the electric push rod 16 is fixedly connected in the mounting groove. The end of the electric push rod 16 away from the mounting groove is fixedly connected with the transmission rack 11 and the standby rack 3. The first fixed block 4 is located on the top of the transmission rack 11. The buffer block 17 is arranged between the top of the transmission rack 11 and the first fixed block 4 and between the bottom of the transmission rack 11 and the bottom end of the pipe pile 5. The buffer block 17 is located on one side of the moving plate 10. The material of the buffer block 17 is polyurethane, which is used to protect the transmission rack 11 or the standby rack 3 at the mounting port.

[0042] When the standby rack 3 needs to be switched, the electric push rod 16 is used to drive the transmission rack 11 to move into the cavity, so that the moving plate 10 moves along the bottom of the first gear 9. Then the driving member drives the first gear 9 to drive the moving plate 10, the transmission rack 11 and the standby rack 3 to rotate, so that the transmission rack 11 and the standby rack 3 change positions. When the standby rack 3 moves to the mounting port, the electric push rod 16 pushes the standby rack 3 to move to the side of the transmission wheel 13 and engage with the transmission wheel 13. When the net cage body 1 is lifted to the limit position, the buffer block 17 can avoid the local indentation caused by the hard top of the tooth surface, and improve the service life of the standby rack 3 and the transmission rack 11.

[0043] As shown in the drawings, Figures 7 to 10As shown, the transmission rack 11 and the middle of the standby rack 3 are provided with a fixing mechanism, the fixing mechanism includes a first motor 18, a rotating shaft 19, a movable plate 20, a pusher and a second fixed block 22, the first motor 18 is located inside the transmission rack 11 or the standby rack 3, the output end of the first motor 18 is fixedly connected with the rotating shaft 19, the rotating shaft 19 is threadedly connected with the movable plate 20, the movable plate 20 is movably connected with the inner wall of the transmission rack 11 or the standby rack 3, the movable plate 20 is hingedly connected with the pusher at both ends, the pusher includes a push plate 21 and a moving block, one end of the push plate 21 is hingedly connected with the bottom of the movable plate 20, the other end is hingedly connected with the moving block, the pusher is hingedly connected with the second fixed block 22, the transmission rack 11 is provided with a second connecting block 23 at the top of both sides, the second fixed block 22 is inserted with the second connecting block 23, the second connecting block 23 is fixedly connected with the bottom of the first fixed block 4, the bottom end of the rotating shaft 19 is rotatably connected with the bottom inner wall of the transmission rack 11 or the standby rack 3, and the moving block is slidably connected with the inner wall of the transmission rack 11 or the standby rack 3.

[0044] The rotating shaft 19 is rotated by the first motor 18, and the rotating shaft 19 drives the movable plate 20 to rotate, and since the movable plate 20 is movably connected with the inner wall of the transmission rack 11 or the standby rack 3, when the movable plate 20 moves downward along the rotating shaft 19, the push plate 21 hingedly connected at both sides rotates outward synchronously around the hinge point, since the bottom end of the push plate 21 is hingedly connected with the moving block, the moving block moves inward along the inner wall of the transmission rack 11 or the standby rack 3 to the second connecting block 23, so that the second fixed block 22 is inserted with the second connecting block 23, thereby limiting the top of the transmission rack 11 or the standby rack 3, supporting the transmission rack 11 or the standby rack 3, improving the stability of the gear and rack transmission structure driving the net cage to move, preventing the transmission rack 11 or the standby rack 3 from rising too much to disengage with the transmission wheel 13, avoiding the net cage body 1 from falling due to losing support, and the fixing mechanism is integrated in the inside of the standby rack 3 or the transmission rack 11, which can be protected when not in use, ensuring the strength of the structure.

[0045] As shown in the figure, Figures 7 to 10 The bottom end of the transmission rack 11 or the standby rack 3 is provided with a limiting structure inside, which limits the transmission rack 11 or the standby rack 3, facilitating subsequent installation, the limiting structure includes a moving piece 24, a sliding block 25 and a plug rod 26, the bottom end of the transmission rack 11 or the standby rack 3 is provided with the moving piece 24, the moving piece 24 is a threaded rod, the threaded rod is threadedly connected with the sliding block 25, and the sliding block 25 is used to drive the sliding block 25 to move along the inner wall of the bottom end of the transmission rack 11 or the standby rack 3, the sliding block 25 is fixedly connected with the plug rod 26 at the bottom, two insertion grooves are formed in the bottom end of the pipe pile 5, the plug rod 26 is inserted into the insertion grooves through the bottom of the rack, the bottom end of the rotating shaft 19 is connected with the moving piece 24 through the mounting plate, the plug rod 26 is symmetrically arranged on both sides of the sliding block 25, and the plug rod 26 is located on both sides of the buffer block 17 at the bottom of the transmission rack 11, which is used to limit the position of the transmission rack 11.

[0046] The threaded rod is connected to the rotating shaft 19 through the mounting plate, and when the rotating shaft 19 rotates, the threaded rod can be driven to rotate. Since the sliding block 25 is in sliding connection with the inner wall of the transmission wheel 13 or the standby gear, the sliding block 25 can move downward along the threaded rod and drive the insertion rod 26 to move downward. When the second fixing block 22 in the fixing mechanism is inserted with the second connecting block 23, the insertion rod 26 is inserted through the bottom of the standby rack 3 or the transmission rack 11 and is inserted into the insertion slot, thereby limiting the bottom of the standby rack 3 or the transmission rack 11, improving the stability of the installation of the standby rack 3 or the transmission rack 11 at the mounting port, preventing the transmission rack 11 or the standby rack 3 from excessively descending and being separated from the transmission wheel 13, and thereby improving the stability of the net cage body 1 in severe sea conditions and reducing the shaking amplitude.

[0047] The working principle of the present application is as follows:

[0048] Referring to Figures 1 to 10 As shown in the initial state, the standby rack 3 is retracted in the cavity, the electric push rod 16 connected with the standby rack 3 is in a retracted state, the transmission wheel 13 is located at the mounting port, and the electric push rod 16 connected with the transmission wheel 13 is in an elongated state. The second fixing block 22 of the fixing mechanism in the transmission rack 11 is inserted with the second connecting block 23, and the insertion rod 26 is inserted into the insertion slot at the bottom end of the pipe pile 5. When the net cage body 1 needs to be lifted, the second motor 12 is started to drive the transmission shaft to rotate, the transmission shaft drives the coaxially fixed transmission wheel 13 to rotate synchronously, so that the transmission wheel 13 and the transmission rack 11 mesh, the transmission wheel 13 drives the movement along the transmission wheel 13, and the mounting seat, the first connecting block 8 and the moving seat 7 move along the outer side of the mounting block 2, and the entire truss 6 and the net cage body 1 are lifted synchronously. When the transmission shaft drives the transmission wheel 13 to rotate, the displacement sensor transmits the collected rotation displacement data to the controller in real time, the controller converts the actual lifting height of the net cage body 1 according to the number of teeth of the transmission wheel 13 and the modulus of the transmission rack 11, and compares it with the preset target height to monitor the lifting speed and position of the net cage body 1 in real time.

[0049] When the transmission rack 11 is stuck, damaged or has a crack at the tooth root, the first motor 18 in the transmission rack 11 is started to drive the rotating shaft 19 to rotate. Since the movable plate 20 is movably connected with the inner wall of the transmission rack 11, the push plate 21 is hingedly connected with the movable plate 20 and the moving block at both ends, so that when the movable plate 20 moves upward along the rotating shaft 19, the push plate 21 is deflected, the moving block and the second fixing block 22 are moved to the middle part of the transmission rack 11, and the second connecting block 23 is no longer inserted, and at the same time, the rotating shaft 19 drives the threaded rod to rotate through the mounting plate. Since the sliding block 25 is in sliding connection with the inner wall of the transmission rack 11, the sliding block 25 drives the insertion rod 26 to move upward into the transmission rack 11, and the insertion rod 26 is no longer inserted into the insertion slot.

[0050] The transmission rack 11 is moved to the inside of the cavity by the electric push rod 16, and the bottom moving plate 10 is moved along the bottom of the first gear 9 by the transmission rack 11. When the transmission rack 11 is moved to the inside of the cavity, the third motor 14 is started to drive the rotating rod and the second gear 15 to rotate, so that the first gear 9 drives the moving plate 10, the transmission wheel 13, the standby rack 3 and the inside mounting block, the electric push rod 16 to rotate in the cavity, so that the standby rack 3 and the transmission wheel 13 switch positions. When the standby rack 3 moves to the mounting port, the standby rack 3 is connected with the electric push rod 16 to push the standby rack 3 to move to the transmission wheel 13 and engage with the transmission wheel 13. The fixing mechanism in the standby rack 3 is started to make the second fixing block 22 in the standby rack 3 and the second connecting block 23 plug-in, and the plug rod 26 in the bottom end of the standby rack 3 and the plug slot in the bottom end of the pipe pile 5 plug-in. The fixing mechanism and the limiting structure limit the upper and lower ends of the standby rack 3 to keep the standby rack 3 stable after switching. The standby rack 3 is installed and fixed with the outside mounting block 2. Through the action of the gear and rack transmission mechanism, the net cage body 1 can continue to be used, and the continuity of breeding production is ensured.

[0051] The above examples are only used to illustrate the technical solutions of the present application, but not limit it.

Claims

1. A lifting mechanism for a cage of the truss type, characterized in that, The switching mechanism comprises two mounting blocks, a standby rack, a first fixed block and a driving structure, the two mounting blocks are sleeved outside the pipe piles of the truss net cage, the truss net cage is lifted, a cavity is arranged between the two mounting blocks, the cavity is provided with a standby rack, the first fixed block is arranged at the top of the two mounting blocks, and the driving structure is arranged in the first fixed block; The driving structure comprises a first driving member and a first gear, the first driving member is located on one side of the pipe pile, the first driving member is provided with a first gear on one side, the first driving member comprises a third motor, a rotating rod and a second gear, the third motor is fixedly connected in the first fixed block, the output end of the third motor is fixedly connected with the rotating rod, the rotating rod is fixedly connected with the second gear, the second gear is engaged with the first gear, the first gear is located between the top of the two mounting blocks and the pipe pile, and the middle part of the first gear is rotatably connected with the outside of the top of the pipe pile; The outside of the mounting block located on the outside is provided with a gear and rack transmission structure, and the gear and rack transmission structure is used for driving the truss net cage to ascend and descend along the pipe pile; The gear and rack transmission structure comprises a transmission rack and a transmission wheel, the transmission wheel and the transmission rack are arranged in meshing mode, the transmission wheel and the transmission rack are arranged on the two sides of the mounting block located on the outside and are symmetrically arranged, the bottom of the mounting block located on the outside is fixedly connected with the bottom end of the pipe pile, the top of the mounting block located on the inside is fixedly connected with the bottom of the first gear, and the bottom of the mounting block located on the inside is rotatably connected with the bottom of the pipe pile, one side of the mounting block located on the outside is provided with a mounting port, and the mounting port and the standby rack are arranged in a cross shape; The first gear is movably connected with a moving plate, the top of the transmission rack and the standby rack are fixedly connected with the moving plate, the upper and lower ends of the mounting block located on the inside are provided with mounting grooves, electric push rods are fixedly connected in the mounting grooves, and the transmission rack and the standby rack are fixedly connected with the one end of the electric push rod away from the mounting grooves, the electric push rod is located at the upper and lower ends of the transmission rack and the standby rack, when the third motor drives the first gear to rotate, the first gear can drive the moving plate, the mounting block located on the inside and the standby rack to rotate in the cavity; The middle parts of the transmission rack and the standby rack are provided with fixing mechanisms, the fixing mechanisms are integrated in the transmission rack and the standby rack, the fixing mechanism comprises a first motor, a rotating shaft, a movable plate, a pushing member and a second fixed block, the pushing member comprises a pushing plate and a moving block, the pushing member is hinged with the second fixed block, the transmission rack is provided with second connecting blocks on the two sides of the top end, when the movable plate moves downward along the rotating shaft, the pushing plate hinged to the two ends of the bottom of the movable plate rotates outward synchronously around the hinge point, the pushing plate pushes the moving block to move into the second connecting block, so that the second fixed block is inserted with the second connecting block, and the transmission rack or the standby rack is limited. In the initial state, the electric push rod connected with the standby rack is in the retracted state, the standby rack is retracted in the cavity, the transmission rack and the transmission wheel are located at the mounting port, the electric push rod connected with the transmission rack is in the elongated state, at this time the transmission wheel and the transmission rack are engaged with each other, the second fixed block and the second connecting block are in the interlocking state; When it is detected that the transmission rack needs to be replaced due to wear, the driving structure is started, the transmission rack is moved into the cavity by the electric push rod, the moving plate is moved along the bottom of the first gear, the first gear drives the moving plate, the transmission rack and the standby rack to rotate through the first driving member, and the symmetrically arranged standby rack and the transmission rack in the cavity are driven to replace positions, when the standby rack is rotated to correspond to the mounting port, the electric push rod is elongated to push the standby rack to the mounting port until the standby rack is engaged with the transmission wheel.

2. A net cage of the truss type, characterized in that: The lifting mechanism of the truss net cage comprises a net cage body and the truss net cage of claim 1, the net cage body comprises a mounting platform, the pipe pile, the truss, the moving seat and the gear and rack transmission structure of claim 1, a plurality of pipe piles are fixedly connected to the mounting platform, moving seats are arranged at the upper and lower ends of the plurality of pipe piles, the truss is fixedly connected to the moving seats at both ends, the two mounting blocks are sleeved outside the pipe piles, and the gear and rack transmission structure is used to drive the moving seat and the truss to move.

3. A net cage according to claim 2, characterised in that: The gear and rack transmission structure comprises a second driving member, the second driving member comprises a second motor, a transmission shaft, the transmission wheel and a displacement sensor, the transmission shaft is fixedly connected to the output end of the second motor, the transmission shaft is fixedly connected to the transmission wheel, and the transmission rack is arranged on one side of the second driving member.

4. A cage according to claim 3, characterised in that: A first connecting block is fixedly connected to the moving seat at the top end of the pipe pile and used for mounting the gear and rack transmission structure, and the moving seat is movably connected to the outside of the pipe pile.

5. A net cage according to claim 4, characterised in that: The second driving member is arranged on the first connecting block, the second driving member and the transmission rack are arranged on both sides of the mounting block outside and symmetrically, and the second driving member is used to stably lift the moving seat and the truss.

6. A lifting mechanism for a net cage according to claim 1, characterised in that: The first fixed block is located at the top of the transmission rack, and a buffer block is arranged between the top of the transmission rack and the first fixed block and between the bottom of the transmission rack and the bottom end of the pipe pile.

7. A lifting mechanism for a net cage according to claim 1, characterised in that: The first motor is located inside the transmission rack and the standby rack, the output end of the first motor is fixedly connected to a rotating shaft, the rotating shaft is threadedly connected to a movable plate, the movable plate is movably connected to the inner walls of the transmission rack and the standby rack, pushers are hinged to both ends of the movable plate, one end of the push plate is hinged to the bottom of the movable plate, the other end is hinged to a moving block, the second fixed block is interlocked with the second connecting block, the second connecting block is fixedly connected to the bottom of the first fixed block, the bottom end of the rotating shaft is rotatably connected to the inner walls of the transmission rack and the standby rack, and the moving block is slidably connected to the inner walls of the transmission rack and the standby rack.

8. A lifting mechanism for a net cage according to claim 7, characterised in that: The bottom end of the transmission rack and the bottom end of the standby rack are internally provided with limiting structures, the limiting structures include a moving piece, a sliding block and a plug rod, the bottom end of the transmission rack and the bottom end of the standby rack are internally provided with the moving piece, the moving piece is provided with the sliding block, the moving piece is used for driving the sliding block to move along the inner wall of the bottom end of the transmission rack and the bottom end of the standby rack, and the bottom of the sliding block is fixedly connected with the plug rod, and the plug rod penetrates through the bottom of the transmission rack and the bottom of the standby rack and is inserted into the bottom end of the pipe pile.

9. A lifting mechanism for a net cage according to claim 8, characterised in that: The bottom end of the rotating shaft is connected with the moving piece through the mounting plate, the plug rods are symmetrically arranged on the two sides of the sliding block, the plug rods are located on the two sides of the buffer block between the bottom of the transmission rack and the bottom end of the pipe pile, and are used for limiting the positions of the transmission rack and the standby rack.

Images